package com.wfyn.reggie.modules.sys.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.wfyn.reggie.common.web.base.BaseController;
import com.wfyn.reggie.common.web.domain.Result;
import com.wfyn.reggie.modules.sys.domain.Category;
import com.wfyn.reggie.modules.sys.domain.Dish;
import com.wfyn.reggie.modules.sys.domain.DishFlavor;
import com.wfyn.reggie.modules.sys.param.DishDto;
import com.wfyn.reggie.modules.sys.service.CategoryService;
import com.wfyn.reggie.modules.sys.service.DishFlavorService;
import com.wfyn.reggie.modules.sys.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 菜品管理
 * @author wfyn
 */
@RestController
@RequestMapping("/dish")
@Slf4j
public class DishController extends BaseController {
    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;

    /**
     * 新增菜品
     *
     * @param dishDto
     * @return
     */
    @PostMapping
    public Result<String> save(@RequestBody DishDto dishDto) {
        log.info(dishDto.toString());

        dishService.saveWithFlavor(dishDto);

        return Result.success("新增菜品成功");
    }

    /**
     * 菜品信息分页查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public Result<Page> page(int page, int pageSize, String name) {

        //构造分页构造器对象
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage = new Page<>();

        //条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        //添加过滤条件
        queryWrapper.like(name != null, Dish::getName, name);
        //添加排序条件
        queryWrapper.orderByDesc(Dish::getUpdateTime);

        //执行分页查询
        dishService.page(pageInfo, queryWrapper);

        BeanUtils.copyProperties(pageInfo, dishDtoPage, "records");

        List<Dish> records = pageInfo.getRecords();

        List<DishDto> list = records.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item, dishDto);

            Long categoryId = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if (category != null) {
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }
            return dishDto;
        }).collect(Collectors.toList());

        dishDtoPage.setRecords(list);
//        List<DishDto> list = pageInfo.getRecords().stream()
//                .map(item -> {
//                    DishDto dishDto = new DishDto();
//                    BeanUtils.copyProperties(item, dishDto);
//
//                    Long categoryId = item.getCategoryId();
//                    categoryService.getById(categoryId).ifPresent(category -> dishDto.setCategoryName(category.getName()));
//
//                    return dishDto;
//                })
//                .collect(Collectors.toList());
//
//        pageInfo.setRecords(list);
//        return Result.success(pageInfo);
        return Result.success(dishDtoPage);


    }

    /**
     * 根据id查询菜品信息和对应的口味信息
     *
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public Result<DishDto> get(@PathVariable Long id) {

        DishDto dishDto = dishService.getByIdWithFlavor(id);

        return Result.success(dishDto);
    }

    /**
     * 修改菜品
     *
     * @param dishDto
     * @return
     */
    @PutMapping
    public Result<String> update(@RequestBody DishDto dishDto) {
        log.info(dishDto.toString());

        dishService.updateWithFlavor(dishDto);

        return Result.success("新增菜品成功");
    }


    /**
     * 删除菜品 以及关联的数据
     *
     * @param ids
     * @return
     */

    @DeleteMapping
    public Result delete(@RequestParam("ids") List<Long> ids) {


        dishService.deleteDish(ids);

        return Result.success();
    }

    /**
     * 根据条件查询对应的菜品数据
     *
     * @param dish
     * @return
     */
    @GetMapping("/list")
    public Result list(Dish dish) {


        //构造查询条件
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId() != null ,Dish::getCategoryId,dish.getCategoryId());
        //添加条件，查询状态为1（起售状态）的菜品
        queryWrapper.eq(Dish::getStatus,1);

        //添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);

        List<Dish> list = dishService.list(queryWrapper);

        List<DishDto> dishDtoList = list.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item,dishDto);

            Long categoryId = item.getCategoryId();//分类id
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if(category != null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }

            //当前菜品的id
            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper = new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(DishFlavor::getDishId,dishId);
            //SQL:select * from dish_flavor where dish_id = ?
            List<DishFlavor> dishFlavorList = dishFlavorService.list(lambdaQueryWrapper);
            dishDto.setFlavors(dishFlavorList);
            return dishDto;
        }).collect(Collectors.toList());

        return success(dishDtoList);
    }

    /**
     * 更改起售状态
     *
     * @param status
     * @param ids
     * @return
     */
    @PostMapping("/status/{status}")
    public Result updateStatus(@PathVariable Integer status, @RequestParam("ids") List<Long> ids) {


        dishService.updateStatus(status, ids);

        return Result.success();

    }




}
